*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #000000;
  --surface: #1a1a1a;
  --text: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.6);
  --text-soft: rgba(255, 255, 255, 0.8);
  --rule: rgba(255, 255, 255, 0.1);
  --font-serif: ui-serif, 'New York', Georgia, serif;
  --font-sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', 'Courier New', monospace;
}

html {
  font-size: 18px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ── Header ───────────────────────────────────────── */

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2rem 4rem;
}

.wordmark {
  font-family: var(--font-sans);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

nav a {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-muted);
  transition: color 0.2s;
}

nav a:hover {
  color: var(--text);
}

/* ── Hero ─────────────────────────────────────────── */

.hero {
  padding: 8rem 4rem 10rem;
  max-width: 860px;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(3.5rem, 7.5vw, 6.5rem);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 3rem;
}

.hero h1 em {
  font-style: italic;
}

.lead {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--text);
  line-height: 1.75;
  margin-bottom: 3.5rem;
  max-width: 480px;
}

/* ── Buttons ──────────────────────────────────────── */

.cta-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0;
  border-radius: 100px;
  transition: all 0.2s;
  cursor: pointer;
}

.btn-primary {
  background: var(--text);
  color: var(--bg);
  border: 1px solid var(--text);
}

.btn-primary:hover {
  background: var(--text-soft);
  border-color: var(--text-soft);
}

.btn-ghost {
  border: 1px solid var(--rule);
  color: var(--text-muted);
  background: transparent;
}

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--text);
}

/* ── Divider ──────────────────────────────────────── */

.divider-section {
  padding: 0 4rem;
}

.rule {
  border: none;
  border-top: 1px solid var(--rule);
}

/* ── Editorial ────────────────────────────────────── */

.editorial {
  padding: 8rem 4rem;
}

.editorial-inner {
  max-width: 580px;
}

.editorial h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 400;
  font-style: italic;
  color: var(--text);
  margin-bottom: 2.5rem;
}

.editorial p {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1.9;
  color: var(--text);
  margin-bottom: 1.6rem;
}

.editorial p:last-child {
  margin-bottom: 0;
}

/* ── Principles ───────────────────────────────────── */

.principles {
  padding: 8rem 4rem;
}

.principles h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 400;
  font-style: italic;
  color: var(--text);
  margin-bottom: 4rem;
}

.principles-list {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  max-width: 580px;
}

.principle {
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
}

.principle-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  padding-top: 0.4rem;
  min-width: 2rem;
  flex-shrink: 0;
}

.principle h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 0.6rem;
}

.principle p {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.85;
  color: var(--text);
}

/* ── Closing ──────────────────────────────────────── */

.closing {
  padding: 8rem 4rem 10rem;
  text-align: center;
}

.closing-quote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 400;
  color: var(--text);
  line-height: 1.55;
  margin-bottom: 3.5rem;
}

/* ── Footer ───────────────────────────────────────── */

footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 2rem 4rem;
  border-top: 1px solid var(--rule);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-muted);
}

footer a:hover {
  color: var(--text);
}

.footer-sep {
  opacity: 0.4;
}

/* ── Responsive ───────────────────────────────────── */

@media (max-width: 640px) {
  header {
    padding: 1.5rem 1.5rem;
  }

  .hero {
    padding: 5rem 1.5rem 6rem;
  }

  .divider-section,
  .editorial,
  .principles,
  .closing {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  footer {
    padding: 2rem 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
    text-align: center;
  }
}